namespace SolidMvvm {
	using System;
	using System.Globalization;
	using System.Windows;
	using System.Windows.Data;

	// False if null.
	[ValueConversion(typeof(object), typeof(Visibility))]
	public class NullToFalseAndNotNullToTrueConverter : IValueConverter {
		public object Convert(object value, Type targetType, object parameter, CultureInfo culture) {
			return value != null;
		}

		public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) {
			throw new NotImplementedException();
		}
	}
}
